feat: docker image for results component

17-results-summary-component-go/default.nix

@@ -1,7 +1,27 @@
-{ config, lib, pkgs, ... }:
+{ lib, pkgs, ... }:
-let pname = "countries-page";
+let
-in {
+  pname = "results-summary-component";
-  # todo, building app
+  version = "0.0.1";
-  # building docker image
+in rec {
+  package = pkgs.buildGoModule {
+    inherit pname version;
+    src = pkgs.nix-gitignore.gitignoreSource [ ] ./.;
+    vendorHash = null; # set to "" when get dependencies in go.mod
+  };
+  image = pkgs.dockerTools.buildLayeredImage {
+    name = pname;
+    tag = "latest";
+    created = "now";
+    config = {
+      Cmd = [
+        "${package}/bin/results-summary-component-go"
+        "-p"
+        "8080"
+        "-h"
+        "0.0.0.0"
+      ];
+      ExposedPorts = { "8080/tcp" = {  }; };
+    };
+  };
   # nixos module
 }

17-results-summary-component-go/main.go

@@ -68,10 +68,12 @@ func main() {
 	})
 
 	var port int
+	var host string
 	flag.IntVar(&port, "p", 8080, "Specify port for server to start on")
+	flag.StringVar(&host, "h", "localhost", "Specify host for server to start on")
 	flag.Parse()
 
-	address := fmt.Sprintf("localhost:%d", port)
+	address := fmt.Sprintf("%s:%d", host, port)
 	log.Printf("starting server on %s", address)
 	log.Fatal(http.ListenAndServe(address, nil))
 }

flake.nix

@@ -36,6 +36,10 @@
           inherit pkgs sbt-derivation;
           lib = pkgs.lib;
         };
+        results-component-go = import ./17-results-summary-component-go {
+          inherit pkgs;
+          lib = pkgs.lib;
+        };
       in {
         devShells.default = pkgs.mkShell {
           buildInputs = [
@@ -75,6 +79,8 @@
         nixosModules.multi-step-form = multi-step-form.module;
         packages.countries-page = countries-page.package;
         packages.countries-page-image = countries-page.image;
+        packages.results-component-go = results-component-go.package;
+        packages.results-component-go-image = results-component-go.image;
       });
   # see https://serokell.io/blog/practical-nix-flakes
 }